feat: v0.10.0 quieter Matrix, worktrees, usage pace, repo diffs, copy reply, turn timer, compact

- Matrix "needs you": ignore Claude's idle reminder (no red, no post); post
  only when no tab is in view, after 60 s, once per session per 10 min, and
  say what is asked. Closes #50
- devdesk new NAME PROJECT --worktree: own checkout on devdesk/NAME,
  cleaned up on end when clean/merged. Closes #44
- Usage meters: reset time, pace warning; Matrix ping past 90% when away.
  Closes #45
- Repo panel lists changed files; click opens the diff. Closes #46
- Copy Claude's last reply (--last-reply). Closes #47
- Turn timer in chip, title and cards. Closes #48
- Compact button at 80% context when idle. Closes #49

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WHRLCCdXYm41Qx5kNhehaP

libexec/devdesk-state-hook

@@ -21,8 +21,17 @@ session=$(tmux display-message -p -t "$TMUX_PANE" '#S' 2>/dev/null)
 
 # Unit separator, not tab: read collapses runs of whitespace delimiters, so an
 # empty field would shift the ones after it.
-IFS=$'\x1f' read -r event message tool file < <(jq -rM '[.hook_event_name // "", (.message // "" | gsub("[\u001f\n]"; " ")),
-    .tool_name // "", (.tool_input.file_path // .tool_input.notebook_path // "" | gsub("[\u001f\n]"; " "))] | join("\u001f")' <<<"$input" 2>/dev/null)
+IFS=$'\x1f' read -r event message tool file ntype < <(jq -rM '[.hook_event_name // "", (.message // "" | gsub("[\u001f\n]"; " ")),
+    .tool_name // "", (.tool_input.file_path // .tool_input.notebook_path // "" | gsub("[\u001f\n]"; " ")),
+    .notification_type // ""] | join("\u001f")' <<<"$input" 2>/dev/null)
+
+# Claude's idle reminder ("Claude is waiting for your input", about a minute
+# after a turn ends) is not a request: the turn is simply done. It must not
+# turn the session red or reach Matrix (devdesk#50).
+if [ "$event" = Notification ] &&
+    { [ "$ntype" = idle_prompt ] || { [ -z "$ntype" ] && [[ $message == *"waiting for your input"* ]]; }; }; then
+    exit 0
+fi
 
 # Files Claude edits, for the file viewer's "Claude" badge (devdesk#19).
 case $event:$tool in